An apparatus comprising: a ring magnet having first surface, a second surface, and a bore extending from the first surface to the second surface, the bore having a central longitudinal axis; a substrate disposed inside the bore, the substrate having a first axis and a second axis; a first group of magnetic field sensing elements that are formed on the substrate, the first group of magnetic field sensing elements including a first in plane magnetic transducer and a second magnetic field sensing element, the first magnetic field sensing element being aligned with the first axis and the second magnetic field sensing element being aligned with the second axis; and a second group of magnetic field sensing elements that are formed on the substrate, the second group of magnetic field sensing elements including a third magnetic field sensing element and a fourth magnetic field sensing element, the third magnetic field sensing element being aligned with the first axis, and the fourth MR element being aligned with the second axis.